Investigation Expert Witness

Mr. Jim G. Zarnick has 18 years of experience as a Private Investigator. Today, he is a licensed Private Detective and holds both an Original Firearms Training License and a Firearm Control Card License in the State of Illinois. Moreover, his company is a licensed Private Investigator Firm in the State of Indiana. This expert currently serves as a Private Investigator and as the Owner of Jim Zarnick, Licensed Private Investigator....

Mr. Gregory R. Spelson has over three decades of experience in the Legal Field with five of those being in the field of Private Investigations. He earned his BA from the University of Illinois Urbana Champaign and his JD from the University of Illinois College of Law. Today, this expert is licensed as a Private Investigator in the state of Wisconsin and has Admission to Practice Law in the state of Illinois. He was formerly an Attorney at a number of firms, including ...

Mr. Chris E. McGoey has 49 years of experience in Law Enforcement & Security with expertise in Criminology and Loss Prevention. He earned his AA in Police Science from Chabot College and his BS and MS in Criminal Justice Administration from San José State University. Today, this expert is a Certified Protection Professional by the American Society for Industrial Security, a Certified Security Professional and a Certified Professional Investigator by the California ...

This highly-qualified expert has extensive experience in the field of law enforcement. He earned his BS in sociology and criminal justice from Curry College and graduated from both the Boston Police Academy and the FBI National Academy. He also completed the senior executives program for state and local government at Harvard Kennedy School of Government and the national leadership preparedness initiative program at the Harvard School of Public Health. This expert is ...

This expert has a decade of experience in the field of correctional internal investigations. He earned his BS in criminal justice administration from Northeastern State University and is a certified firearms instructor. He previously served as a deputy sheriff at the Adair County Sheriff Department, as an armed patrol agent for Command Security Services and as a lead corrections officer for the Jackson County Department of Corrections. He is currently a correctional ...

This highly qualified fire cause investigation expert has nearly 30 years of professional experience. He completed prestigious fire science training at Mission College and is a certified fire service instructor and a California commercial pyrotechnician. Additionally, this expert is a licensed private investigator by the California Department of Consumer Affairs. He has completed additional vocational training and educational courses in investigation, homicide, ...

This highly qualified expert has over twenty years of experience in investigations. He earned his BS in business from California Coast University and is a certified social media investigations expert by the McAfee Institute. This expert is also a certified and licensed private investigator by the California Association of Licensed Investigators and The State of California, respectively. He is a member of the California Association of Licensed Investigators, the National ...

This expert has over 20 years of experience in the field of digital forensics. She attended the Arizona Law Enforcement Academy, and served the Phoenix Police Department as a Digital Mobile Forensic Detective. While working there, she worked in several different units, including the Home Invasion Kidnapping Enforcement Unit, the Intelligence Action Center, and the Digital Forensic Investigation Unit. She has participated in many trainings and classes, earning her several ...

This expert is currently a fire and explosion investigator and analyst at a top forensic firm in the Southeast. He is a highly qualified fire and explosion expert and has extensive credentials, including: multiple certifications, fire and explosion research, many published articles and papers, presentations, teaching, years of experience including hundreds of fire and explosion investigations, analyses, and testimony on numerous cases....

This highly qualified expert has a BS from the University of Illinois, a MPA from Governors State University, and a PhD from Walden University (residency performed at Indiana University). Dr. Henson is an independent drug and alcohol testing consultant, providing drug and alcohol testing evaluations, research, and expert testimony. He has been qualified as an expert in field sobriety testing, drug and alcohol testing, physiology, and pharmacology in criminal, civil, and ...

This highly experienced train operations and investigations expert has nearly 30 years of experience in his field. He has experience supervising locomotive engineers, handling efficiency checks, analyzing event recorders, and overseeing investigations. He earned his diploma certification in business management studies at Loyalist College and has a locomotive engineer certification from the Canadian National Railways Training Center. Previously, he has held roles as an ...

This highly qualified professional has over 40 years of law enforcement experience. He has been conducting law enforcement training since 1977 with an emphasis on Street Gangs and Organized Crime and was assigned as training deputy inside the Hall of Justice Jail, while employed with the Los Angeles County Sheriff’s Department. Formerly, he held roles as Investigator/ Extradition Officer at Illinois Department of Corrections, Deputy Sherrif at Los Angeles County, ...